Piping system for heaters.



' No. 881,612. I PATBNTED SEPT. 25', 1906.

W. P. HUSSBY. PIPING SYSTEM FOR HEATERS.

APPLIOATION FILED JULY 31. 1905.

WITNESSES: JNVENTOR.

an R4 ATTORNEY.

THE NORRIs PETERS 60., wasilmcmu. D c.

UNITED STATES PATENT orricn.

IVILLIAM P. HUSSEY, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO STANDARD DRYKILN COMPANY, OF INDIANAPOLIS, INDIANA,

Specification of Letters Patent.

FOR HEATERS.

Patented Sept. 25, 1906.

application filed July 31,1905- Serial No. 272.053.

To all whom it may concern: Be it known that I, WILLIAM P. HUssEY,

of Indianapolis, county of Marion, and State of Indiana, have invented acertain new anduseful Piping System for Heaters; and I do hereby declarethat the following is a full,

clear, and exact description thereof, reference being had to theaccompanying drawing,

in which like figures refer to like parts.

The object of this invention is to improve the piping systems fordry-kilns and similar constructions for drying lumber or other material.One feature consists in arranging a system so that the main bodies ofall heatingpipes will be of uniform length and thetransversely-extending pipes at each end of the longitudinal pipes willcomplement each other and together be of uniform length throughout thesystem. This system also provides fully for expansion and contractionand has substantially two halves drained by one drain-header and eachhalf supplied by an independent supply-header.

The general nature of the invention will be understood from theaccompanying drawing and the following description and claims.

The drawing shows a plan view of the system of pipes for a lumberdry-kiln.

In detail suitable transverse pipe-supporting beams 10 are secured attheir ends in the walls and they carry the longitudinal portions of theheating-pipes 11, all of which are of the same length. Each longitudinalportion of pipe has at each end a transverselyextending pipe 12. Thelongitudinal pipes are arranged in two series or halves, half on eachside of the central part of the kiln.

A supply-header 13 is connected with the longitudinally-extending endpipes 12 of each side or half of the system. The two supplyheaders aretherefore parallel with the longitudinal pipes 1 1 and are supplied withsteam through the pipe 14. and the intermediate short connecting-pipes15. The supply headers therefore are remote from each other and the endpipes 12, leading from them, ex tend inwardly from the headers to thelongitudinally-extending heating-pipes 1 1.

At the other end of the system there is only one drain-header 17,centrally located, but extending longitudinally and being connected withthe end pipes 12, which extend inwardly from the ends of thelongitudinal pipes to the drain-header.

The end pipes 12, secured to the two ends of the longitudinal pipes 11,are, when taken together, of the same aggregate length throughout thesystem. While at one end of the system the end pipes gradually increasein length from the middle outward, at the other end the end pipescorrespondingly di-' minish in length, so that these end pipescomplement each other, and they may be all made from pipes of the samelength by cut ting each pipe once and threading the ends. Aside from theconvenience in preparing the pipes for this piping system it is veryconvenient to build up the system in the kiln or drier, as the pipeshave the uniform length referred to and are parallel with each other.Because of this uniformity of length the expansion and contraction aresuch that the stresses produced therein are uniformly distributed amongthe unions.

All headers are longitudinally extending and the supply-headers are ofdouble the capacity of the drain-header, and the drainheader is at themiddle, while the supplyheaders are at the sides, so that there is ampleopportunity for the expansion of the longitudinal pipes, whichconstitutes one of the chief advantages arising from this system. Sincethe end pipes are together of the same length and the longitudinal pipesalso of the same length, the expansion and contraction of the systemwill always be such that the stresses produced therein are uniformlydistributed among the unions and the same effect will be produced atevery union of the pipes and headers. 20 represents the trackrails fortwo railway-tracks over said pipes.

It will be observed from the drawing that it is convenient to provide agap in the piping system for supports for railway-rails or for any otherpurpose by omitting one set of pipes.

hat I claim as my invention, and desire to secure by Letters Patent, is

1. In a heating system, a series of heatingpipes arranged parallel witheach other, and each consisting of a longitudinally-extending portion,and transverse end portions connected therewith and extending inopposite parallel directions, said longitudinal portions saidlongitudinal portions of the pipes being verse end portions connectedtherewith and extending in opposite parallel directions,

of the same length and the sum of the lengths 'of the end portionsconnected with every longitudinal portion being equal to the sum of thelengths of the end portions connected with every other longitudinalportion, the

.longitudinal portionsof both series of heating-pipes being parallel andthe inlet end portions extending in opposite directions, a eader for theinlet end portions of each se- 25 ries of pipes, and a singledrain-header for the outlet end portions of both series of pipes saidheaders extending parallel with the longitudinal portions of the pipes.

3. In a heating system, a longitudinallyextending drain-header centrallylocated at one end, two longitudinally-extending supply-headers at theother end, one at each side, a set of pipes leading from thesupplyheaders to the drain-header, said pipes each consisting of alongitudinal portion with a pipe leading outwardly from the end thereofto the supply-header, and a pipe leading from the other end thereofinwardly to the drain-header, the longitudinal portions of all of saidpipes being of the same length and v the sum of the lengths of the endportions connected with every longitudinal portion being the same.

In witness whereof I have hereunto affixed my signature in the presenceof the witnesses herein named.

WILLIAM P. HUSSEY.

Witnesses:

CARRIE FLINN, N ALLEMONG.

